Description 1.What is Statistical Hypothesis ? 2. What and is Substantive Hypothesis? What does it require? 3. When and how do you reject a null hypothesis? 4. What is the difference between a two-tailed and a one-tailed test? 5. What are the two methods of making a statistical decision? 6. What does P Value mean? 7. What is Statistical Inference? 8. Explain Measures of dispersion.